Discipline and lies create a genre (7,7)
I believe the answer is:
science fiction
'a genre' is the definition.
(I've seen this before)
'discipline and lies' is the wordplay.
I cannot quite understand how this works, but
'discipline' could be 'science' (science is a kind of discipline) and 'science' is found within the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is located in the answer.
This explanation may well be incorrect...
'create' is the link.
Can you help me to learn more?
(Another definition for science fiction that I've seen is " Genre".)